%I #2 Mar 30 2012 18:57:04
%S 1,3,4,30,24,168,288,1080,1920,12672,8640,131040,161280,414720,774144,
%T 10575360,8294400,36771840,69672960,383201280,729907200,4578508800,
%U 2043740160,45287424000,65213890560,180592312320,347807416320
%N (1/2)*A075998.
%e a(6) = (1/2)*<6/1>*<6/2>*<6/3>*<6/4>*<6/5>*<6/6> = (1/2)*7*4*3*1*2*2 = 168, where <x> denotes the integer second-nearest to x, as defined at A075998.
%Y Cf. A075998 (product of second-nearest integers), A010786 (product of [n/k], k=1, 2, ..., n).
%K nonn
%O 1,2
%A _Clark Kimberling_, Sep 29 2002
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